title: Temperature-dependent Sellmeier equations of nonlinear optical crystal La(2)CaB(10)O(19).
abstract: The thermal dependence principal refractive indices ofLa(2)CaB(10)O(19) (LCB) crystal at wavelengths of 0.254, 0.365, 0.405, 0.480, 0.546, 0.644, 0.852, 1.014, and 2.325 μm were accurately measured by using the vertical incidence method within the temperature range from 25 to 170 °C. We derived equations of thermal refractive index coefficients as a function of wavelength that could be used to calculate the principal thermal refractive indices at different wavelengths. The temperature-dependent Sellmeier equations were also derived and used to calculate the phase-matching angles for the third-harmonic generation of LCB crystal at different temperatures. Theoretical and experimental phase-matching angles for the type I third-harmonic generation of LCB crystal at different temperatures were in good agreement.
authors.forename: Naixia
authors.initials: N
authors.lastname: Zhai
authors.forename: Yin
authors.initials: Y
authors.lastname: Li
authors.forename: Guochun
authors.initials: G
authors.lastname: Zhang
authors.forename: Yicheng
authors.initials: Y
authors.lastname: Wu
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen